I've had a mess around to see if I can figure something out, the way I'm doing things currently diagonals are awkward and don't really work properly, if I ever remake this I'll keep this stuff in mind.
As for input stream visuals, while alt codes don't seem to work, if you enable custom font while using this websites font, then copy paste the symbols into the appropriate input name, you can sort of get this effect of button prompts? (you can use custom font by opening the save file location, going up one folder, pasting your font there and renaming font).
